COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of these happens in the Execute stage?
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The Program Counter is incremented by 1
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The value in the Current Instruction Register is decoded
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The value in the Accumulator is stored in memory
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The data at the address in the Program Counter is fetched from memory
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Explanation:
Detailed explanation-1: -The result generated by the operation is stored in the main memory or sent to an output device. Based on the feedback from the ALU, the PC may be updated to a different address from which the next instruction will be fetched.
Detailed explanation-2: -* AC The Accumulator is used to store data that is being worked on by the ALU, and is the key register in the data section of the cpu.
Detailed explanation-3: -Now, the command will be executed. The operand is copied to the MAR, as it provides the address of the data to be loaded (0100 in this case). The data at address 0100 is then fetched from RAM and passed up the data bus to the MDR.
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